condition mean min max 12pM Fe,Midday 55.4876 55.4876 55.4876 12pM Fe,Midnight 45.507850000000005 44.1452 46.8705 58pM Fe,Midday 45.09 45.09 45.09 58pM Fe,Midnight 42.31532857142857 0.0 53.7032 233pM Fe,Midnight 27.371266666666667 26.6729 28.2192 1160pM Fe,Midday 40.29915714285714 35.9502 43.2708 1160pM Fe,Midnight 24.02980833333333 18.566 29.5194 High carbon,Dark 26.361577333333333 6.10226 39.7768 High carbon,Light 18.519177692307693 4.79995 49.1888 Low carbon,Dark 22.4493 22.4493 22.4493 Phloroglucinol 52.98786666666667 42.1497 71.4494 Silicon starvation,12h 29.7667 29.7667 29.7667